High quality soft rubber silicone washers/sealing gaskets

Custom soft rubber silicone washers provide a flexible sealing layer for a defined joint. Their softness should be considered together with the support available around the sealing area. The inner opening and outside boundary need to follow the mating surfaces so the rubber remains in its intended position as the joint closes.

Check for gaps beside either edge that could receive displaced material. A soft washer should not be expected to compensate for an unsupported or poorly aligned seat. The thickness needs to suit the planned compression and final position of the adjoining parts. Evaluate the completed assembly under the actual contact conditions.

Choose the silicone formulation for the medium, temperature, and care process. Before fitting, remove debris from the sealing faces and position the washer without folds. During service, inspect for cuts or material pushed beyond the intended outline. A replacement should preserve the specified profile rather than use extra softness or thickness to hide a problem in the surrounding joint geometry.

Material options

Silicone. Custom formulation and color for the intended contact conditions.

Hardness selection

Silicone: 20–80 Shore A. Custom soft rubber silicone washers provide a flexible sealing layer for a defined joint.

Custom dimensions

The inner opening and outside boundary need to follow the mating surfaces so the rubber remains in its intended position as the joint closes.

Fit & assembly

A soft washer should not be expected to compensate for an unsupported or poorly aligned seat.

Use & inspection

Before fitting, remove debris from the sealing faces and position the washer without folds.

Photos illustrate structure or material only. The thickness needs to suit the planned compression and final position of the adjoining parts. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.